EP2732226A2 - Appareil frigorifique présentant plusieurs compartiments - Google Patents

Appareil frigorifique présentant plusieurs compartiments

Info

Publication number
EP2732226A2
EP2732226A2 EP12731484.7A EP12731484A EP2732226A2 EP 2732226 A2 EP2732226 A2 EP 2732226A2 EP 12731484 A EP12731484 A EP 12731484A EP 2732226 A2 EP2732226 A2 EP 2732226A2
Authority
EP
European Patent Office
Prior art keywords
refrigerant
refrigerating appliance
air
chamber
temperature
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
EP12731484.7A
Other languages
German (de)
English (en)
Inventor
Denis Tamborlin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP2732226A2 publication Critical patent/EP2732226A2/fr
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/042—Air treating means within refrigerated spaces
    • F25D17/045—Air flow control arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/385—Dispositions with two or more expansion means arranged in parallel on a refrigerant line leading to the same evaporator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
    • F25D17/065—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators with compartments at different temperatures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00—Control issues
    • F25B2600/11—Fan speed control
    • F25B2600/112—Fan speed control of evaporator fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00—Control issues
    • F25B2600/25—Control of valves
    • F25B2600/2511—Evaporator distribution valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2700/00—Means for sensing or measuring; Sensors therefor
    • F25D2700/12—Sensors measuring the inside temperature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

Definitions

  • the present invention relates to a refrigerator, in particular domestic refrigeration appliance, with a first chamber to be cooled and a second chamber to be cooled, wherein a first sensor for detecting a first temperature in the first chamber and a second sensor for detecting a second temperature in the second chamber are.
  • Refrigerators are commonly provided with a refrigerant circuit for cooling a chamber. If the refrigerator is designed as a compression refrigeration, is the
  • Refrigerant circuit with a compressor (compressor) and a throttle body (eg expansion valve) equipped.
  • the compression and the expansion element and two heat exchangers are interconnected in a circuit such that the heat exchanger can be switched on both sides between the compression and expansion element.
  • the refrigerant vapor from the compressor is sucked and compressed.
  • the downstream heat exchanger condenses the refrigerant.
  • the liquid refrigerant is passed to a throttle body and relaxed.
  • the refrigerant pressure decreases, the refrigerant cools and partially evaporates.
  • the second heat exchanger evaporator
  • the refrigerant absorbs the supplied heat from the cooling space by evaporation. The compressor sucks in the vaporized refrigerant and the cycle is closed.
  • Cooling devices have multiple chambers, such as a freezing chamber and a cooling chamber, which are cooled to different temperatures.
  • a freezing chamber and a cooling chamber
  • Cooling devices have multiple chambers, such as a freezing chamber and a cooling chamber, which are cooled to different temperatures.
  • a cooling chamber which are cooled to different temperatures.
  • An inventive refrigeration device has a first chamber to be cooled and a second chamber to be cooled and a refrigerant circuit for cooling the chambers.
  • the refrigerant circuit includes a compressor for compressing refrigerant vapor, a condenser downstream of the compressor for condensing the refrigerant
  • Refrigerant vapor and a downstream of the condenser and the compressor upstream evaporator for vaporizing the liquefied refrigerant At the first chamber, a first sensor for detecting a first temperature of the first chamber is provided. At the second chamber, a second sensor for detecting a second temperature of the second chamber is provided. A valve is interposed between the condenser and the evaporator, by means of which refrigerant flowing out of the condenser can optionally be supplied via a first refrigerant passage and a second refrigerant passage to the evaporator based on the first temperature and / or the second temperature.
  • a first air passage for supplying air to the first chamber and a second air passage for supplying air to the second chamber are provided.
  • a fan with an adjustable damper is provided to close the first air duct or the second air duct depending on the first temperature and / or the second temperature. Two parameters can then be varied simultaneously in the refrigeration device.
  • the air flow which is conducted along the evaporator by means of the air duct, can be fed by means of the air damper optionally to the first chamber or the second chamber or to be discharged therefrom.
  • the refrigerant can optionally be passed to the evaporator via the first refrigerant channel or the second refrigerant channel.
  • the evaporator may be provided with a heat exchanger for heat transfer of air supplied by an air passage from the first chamber or the second chamber to the fluid.
  • the flow to the evaporator can be varied via the properties of the first refrigerant channel or second refrigerant channel. For example, a different flow resistance of the first or second refrigerant channel can be realized, whereby the amount of refrigerant, which is supplied to the evaporator, is variable.
  • both adjustment is a particularly flexible operation of the refrigerator with respect to a different cooling of both chambers in only one evaporator provided possible.
  • a second evaporator can be saved, which is the
  • the refrigeration device can be operated, for example, in two different operating modes, a cooling mode and a freezing mode.
  • the cooling mode is then assigned, for example, a compressor speed of 800 rpm, an evaporator temperature of -12 ° C., a condenser temperature of 30 ° C. and a fan speed of 800 to 1200 rpm.
  • the compressor speed is 1600 rpm
  • the evaporator temperature is -24 ° C.
  • the condenser temperature is 30 ° C.
  • the fan speed is 800 to 1200 rpm.
  • a refrigeration device Under a refrigeration device is in particular a household refrigeration appliance understood, ie a refrigeration appliance for household management in households or possibly in the
  • Catering area is used, and in particular serves to store food and / or drinks in household quantities at certain temperatures, such as a refrigerator, a freezer, a fridge-freezer, a freezer or a wine storage cabinet.
  • the valve is designed as a solenoid valve.
  • Solenoid valve allows a reduction of energy consumption. Furthermore, the solenoid valve as a solenoid valve, in that it can be controlled by an electromagnet, allows a good connection to a controller. Furthermore, depending on their design, solenoid valves can switch very quickly and thus improve the reaction behavior of the refrigerant guide.
  • the fan speed of the fan is variable.
  • the air flow rate through the first and second air duct can be varied. This makes it possible to heat exchange between the heat exchanger and the am
  • the cooling temperature of the heat exchanger can be made by the amount of air influence on the cooling capacity of the refrigerator.
  • the flow resistance for the refrigerant of the first channel is less than the flow resistance of the second channel. This can be varied by the choice of the channel, the flow rate of refrigerant. This makes it possible to change the flow rate and the flow path by means of the valve.
  • the first refrigerant channel and / or the second refrigerant channel are at least partially designed as a capillary tube.
  • Capillary tubes have a very small inner diameter. Due to the surface effects, which come to the fore in comparison with larger pipes, capillarity occurs in capillary tubes as a physical effect. High surface tension refrigerants may also condense on the capillary walls above their boiling point.
  • a controller is provided, to which both sensors and the valve are connected. The controller allows the
  • the refrigerant flows in the two refrigerant channels can be controlled depending on the given in the chambers temperatures. This allows flexible control of the refrigerant flows to set the desired temperature in the respective chamber.
  • the air flap is designed electromechanically.
  • the electromechanical design allows a good control technology connection of the air damper.
  • the air damper can be connected to the controller to which the two sensors are also connected. This allows optimal coordination of the air flow through the chambers and the
  • the fan can be connected to the controller to the amount of
  • valve is infinitely adjustable so that the refrigerant continuously between the first refrigerant channel and the second
  • Refrigerant channel is divisible. This allows an accurate adjustment of the Refrigerant flow in both refrigerant channels and on the flow characteristics of the refrigerant channels, an adjustment of the instantaneous cooling capacity of the refrigerator.
  • the air flap is made of a hydrophobic material at least on its surface. In operation, the hydrophobic
  • Coating reduces the adhesion energy between the duct wall and the water in the air.
  • the hydrophobic material prevents ice from adhering to the air flap and affecting its adjustability.
  • the air damper can also be made elastic, so that adhering material, e.g. Ice, released by the deformation of the damper of the air damper.
  • the air flap is struck so that it is pivotable from an opened starting position only in one direction to a closed position. This results in two defined end positions, which can be easily controlled in terms of control engineering. The error rate is thereby reduced.
  • the air damper in at least one
  • Figure 1 a schematic representation of a refrigerator according to the embodiment
  • Figure 2 is a schematic representation of a section of the refrigerator according to the embodiment of Figure 1 in a first switching state of the air damper.
  • FIG. 3 shows a schematic illustration of a section of the refrigeration device according to the exemplary embodiment of FIG. 1 in a second switching state of the air flap.
  • Figure 1 shows a schematic representation of a refrigerator 1 according to a
  • a compressor 7 is shown at the bottom of the picture.
  • the compressor 7 serves to compress refrigerant vapor.
  • the compressor 7 is a condenser. 9
  • the condenser serves to condense the refrigerant vapor.
  • an evaporator 1 1 Downstream of the condenser 9, an evaporator 1 1 is arranged, in which the liquefied refrigerant evaporates and thereby absorbs heat.
  • the evaporator 1 1 has a heat exchanger 13, which dissipates heat in this embodiment, the heat conducted through in an air duct 15 air.
  • the refrigerant is then fed back to the compressor 7.
  • the refrigerant flow by means of a valve 21 selectively via a first refrigerant passage 31 or a second refrigerant passage 33 to the evaporator 1 are fed.
  • the two refrigerant channels 31, 33 have different flow resistance in this embodiment, so that the choice of the respective refrigerant channel 31, 33, the heat transfer to the refrigerant via the
  • Heat exchanger 13 can be influenced.
  • the valve 21 is connected, for example, to a controller of the refrigeration appliance 1, so that the refrigerant flows in the two refrigerant channels 31, 33 can be controlled via it.
  • FIG. 2 shows a schematic representation of a section of the refrigeration device 1 according to the exemplary embodiment of FIG. 1 in a first switching state of the air flap 43. Based on Figure 2, the operation of the refrigeration device 1 is carried out further. In Figure 2, the air coming from the right by means of a fan 41 in an above
  • first chamber 3 and conveyed via a second air channel 16 in a second chamber 5 shown below.
  • the air is by means of the fan 41
  • Embodiment pivotally mounted.
  • the air flap 43 is in its lower position, so that the air can flow both in the image upwards through the first air duct 15 into the first chamber 3 and down through the second air duct 16 into the second chamber 5. This is indicated by black arrows.
  • Figure 3 is a schematic representation of a section of the refrigerator 1 according to the embodiment of Figure 1 in a second switching state of the air damper 43.
  • Figure 3 corresponds to Figure 2, but the air damper 43 is in the upwardly pivoted position, so that the air only can flow through the first air channel 15 in the first chamber 3 shown in the picture above.
  • the second chamber 5 is closed by the swung-up air damper 43 from the air flow.
  • the sensors 17, 19 make it possible to regulate the position of the air flap 43 as a function of the temperatures in the first chamber 3 and the second chamber 5. Further, in this embodiment, the valve 21, which has been described with reference to Figure 1, also depending on the temperatures in the chambers 3, 5 are set. Thus, two parameters can be varied simultaneously in the refrigeration device 1.
  • the air flow which is conducted along the evaporator 11, can either be supplied to the first chamber 3 or second chamber 5 by means of the air flap 43 or be discharged therefrom.
  • the refrigerant can optionally via the first refrigerant passage 31 or the second refrigerant passage 33 for
  • Evaporator 1 1 are passed. About the properties of the first refrigerant passage 31 and second refrigerant passage 33, the influx to the evaporator 1 1 can be varied. With both adjustment is a particularly flexible operation of the refrigeration device 1 in terms of a different cooling of both chambers 3, 5 in only one provided evaporator 1 1 possible. A second evaporator can be saved, which can reduce the energy consumption of the refrigeration device 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

La présente invention concerne un appareil frigorifique (1), notamment un appareil électro-ménager frigorifique qui comprend un premier compartiment à refroidir (3) et un deuxième compartiment à refroidir (5), un circuit de refroidissement destiné au refroidissement des compartiments (3, 5) et comprenant un compresseur (7) destiné à comprimer de la vapeur d'agent de refroidissement, un condenseur (9) connecté en aval du compresseur (7) et destiné à condenser la vapeur d'agent de refroidissement, et un évaporateur (11) connecté en aval du condenseur (9) et en amont du compresseur (7) et destiné à faire s'évaporer l'agent de refroidissement condensé. Selon l'invention, un premier capteur (17) sert à détecter une première température dans le premier compartiment (3) et un deuxième capteur (19) sert à détecter une deuxième température dans le deuxième compartiment (5) ; une soupe (21) est disposée entre le condenseur (9) et l'évaporateur (11) et sert à diriger l'agent de refroidissement s'écoulant en provenance du condenseur (9), vers l'évaporateur (11), via un premier canal d'agent de refroidissement (31) ou un deuxième canal d'agent de refroidissement (33), en fonction de la première température et/ou de la deuxième température.
EP12731484.7A 2011-07-14 2012-07-05 Appareil frigorifique présentant plusieurs compartiments Ceased EP2732226A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011079206A DE102011079206A1 (de) 2011-07-14 2011-07-14 Kältegerät mit mehreren Kammern
PCT/EP2012/063175 WO2013007608A2 (fr) 2011-07-14 2012-07-05 Appareil frigorifique présentant plusieurs compartiments

Publications (1)

Publication Number Publication Date
EP2732226A2 true EP2732226A2 (fr) 2014-05-21

Family

ID=46456625

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12731484.7A Ceased EP2732226A2 (fr) 2011-07-14 2012-07-05 Appareil frigorifique présentant plusieurs compartiments

Country Status (4)

Country Link
EP (1) EP2732226A2 (fr)
CN (1) CN103649659B (fr)
DE (1) DE102011079206A1 (fr)
WO (1) WO2013007608A2 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101542992B1 (ko) * 2014-05-08 2015-08-07 현대자동차 주식회사 자동차의 냉각 장치
KR102442973B1 (ko) * 2015-08-03 2022-09-14 엘지전자 주식회사 진공단열체 및 냉장고
DE102016222948A1 (de) * 2016-11-21 2018-05-24 BSH Hausgeräte GmbH Kältegerät mit luftfeuchtigkeitsoptimiertem Lagerfach
DE102022205946A1 (de) 2022-06-13 2023-12-14 BSH Hausgeräte GmbH Kältegerät

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DE102006061091A1 (de) * 2006-12-22 2008-06-26 BSH Bosch und Siemens Hausgeräte GmbH Kühlmöbel mit wenigstens zwei thermisch voneinander getrennten Fächern

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CN1301392C (zh) * 2005-04-06 2007-02-21 广东科龙电器股份有限公司 一种自适应变节流的空调器
ITTO20060871A1 (it) * 2006-12-07 2008-06-08 Indesit Co Spa Apparecchio di refrigerazione
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Publication number Priority date Publication date Assignee Title
JP2003042628A (ja) * 2001-08-02 2003-02-13 Mitsubishi Electric Corp 冷蔵庫、冷蔵庫の運転方法、冷蔵庫の故障診断方法
DE102006061091A1 (de) * 2006-12-22 2008-06-26 BSH Bosch und Siemens Hausgeräte GmbH Kühlmöbel mit wenigstens zwei thermisch voneinander getrennten Fächern

Also Published As

Publication number Publication date
DE102011079206A1 (de) 2013-01-17
CN103649659A (zh) 2014-03-19
WO2013007608A3 (fr) 2013-05-30
WO2013007608A2 (fr) 2013-01-17
CN103649659B (zh) 2016-03-23

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